Upgrade the cooling system of your 2012-2015 Honda Civic Si with this Mishimoto Performance Aluminum Radiator, built to manage the sustained thermal output of a high-revving K-series engine on the street and the track. All-aluminum construction with precision TIG-welded end tanks outlasts the factory plastic-tanked unit prone to cracking under heat cycling and repeated high-rpm use. A 63% increase in core volume over the OEM radiator delivers greater surface area and thermal capacity, keeping coolant temperatures stable during back-to-back pulls, spirited street sessions, and weekend track days where the stock radiator starts to fall behind.----Designed as a direct-fit replacement for the 2012-2015 Honda Civic Si, this radiator drops in without cutting, fabricating, or modifications, and works seamlessly with all stock hoses and components without alteration. The included high-pressure radiator cap maintains optimal system pressure from the first drive, extracting the full benefit of the upgraded core. The Mishimoto Magnetic Drain Plug catches ferrous metallic debris before it circulates through the cooling system, protecting your K-series engine internals and extending service life beyond what the factory setup allows.----Don't wait for your stock radiator to crack and leave you sidelined. Whether you daily drive your Civic Si, push it hard on weekend canyon runs, or are building toward a higher-output K-series setup, this aluminum radiator handles the sustained thermal demands your factory unit was never built for. Proactive cooling upgrades protect your engine investment - and this one is built to outlast it. Backed by the Mishimoto Lifetime Warranty, this Performance Aluminum Radiator is the last cooling upgrade your 2012-2015 Honda Civic Si will ever need.
Installation InstructionsThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2012-2015 | Honda | Civic | Si |
Bull Strap products are the highest grade cut and sewn items in the automotive industry. We are proud to support USA workers in our bid to manufacture right here in the United States.
WARRANTY
Bull Strap guarantees all products to be free from manufacturer defects for all items for one year, and any color fading (where mentioned) for 2 years from the time of purchase. In the event of a product failure, Bull Strap will decide whether that product should be repaired or replaced after reviewing photos submitted by the customer. Bull Strap will then provide a return shipping label for any product in which the material or stitching were determined to be the root cause. Once received, the product will be repaired or replaced and returned to the customer at no cost.
REFUND POLICY
Seat covers and other custom made items, retain all warranties listed above, but cannot be refunded or exchanged at any time
On non-custom items, if within 30 days of purchase directly from Bull Strap, a customer would like to return an unused product with no modifications, and where the item(s) can be considered 'new in box', the customer can email us at info@bullstrap.com or call us at 951-319-4008. The will be a 15% restocking fee subtracted from any returned items. Once processed, the customer must ship the product back and submit the tracking information. Bull Strap will issue a full refund minus the 15% restocking fee once the item(s) is/are received and determined to be in 'Brand New' condition. NOTE: If a customer ordered Bull Strap products from a dealer, the customer must go through this process directly with the dealer the product was ordered from.
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